Piano Sonata No. 11 in A Major, K. 331: I. Tema con variazoni

Recording identifiers

ISRC

GBAYC8802218

Release date of the album this recording appears on

2019-04-06

CopyrightID (CopyrightChains transaction hash)

0xf4112c5396ade5f88b0b0b67de7549b5b1066015981399b5bd12ec160de01f13

Copyright registration time

2026-07-07T07:44:18+00:00

OpenTimestamps proof evidence

Bitcoin-attested timestamp

2026-07-08T03:20:19Z

Bitcoin block

957118

Canonical record hash

sha256:68f409664876b8acbf43d5dfa280ea053439d317c9ccfb4a657cc29ea53b1b13

• Verify the CopyrightID on CopyrightChains
• Verify the Bitcoin block independently
• Read the machine-verifiable OTS result
• Recording evidence summary for ISRC GBAYC8802218

What this proof establishes

This recording was released in 2019, before generative AI. ProofProfile's catalogue derives from the pre-2022 AcousticBrainz and MusicBrainz source corpus, and ISRC is the stable recording-level bridge from that source corpus to the authoritative cc-db-prod track record.

CopyrightChains and Bitcoin OpenTimestamps make the exact committed record independently verifiable today. The cryptographic proof does not by itself establish authorship or ownership of the underlying recording.

Read the complete pre-generative-AI provenance and verification method.